Hello Dennis,

It is a boost converter. If you want to make it work, output should be higher than input voltage. Please make sure voltage difference between input and output is at least 2V.
And if you want to step up voltage from 12v to 52v, there will be large voltage difference, which may reduce conversion efficiency.

Best regards.

Hello Stephen,

There are two similar items, could you please check which one is correct?

#200386, https://www.amazon.com/dp/B07JC6X1JH/ref=as_li_tl?tag=proeng-20

#200123, https://www.amazon.com/dp/B014W3D1OC/ref=as_li_tl?tag=proeng-20

Best regards.

Hello，

To check what wrong it is, would you like to tell us how did you adjust voltage and current? Have you locked the adjsuted  buttons?

And is the output current zero after turning off output? If there is no current, that mean you have turned off output.

Best regards.

Hello DANIEL MARTÍNEZ GARCÍA,

May I  know mroe details about your wiring?  How is it without load?

It would be appreciated if you can show wiring by images, we can check it carefully by that way.

You can send a link to image here or send them to  Service@droking.com.

Best regards.

Hello,

Could you please kindly tell us which item it is? Is it this one? https://www.amazon.com/dp/B07P94Z9XR/ref=as_li_tl?tag=proeng-20

Best regards.

Hello DANIEL MARTÍNEZ GARCÍA，

We are sorry we can’t search item with 124806L. Would you like to offer a product link or  other information so that we can confirm it?

Best regards.

Hello Jacob Mullins，

As affected by coronavirus， we are sorry for delayed response.

Did you set OFT?

Best regards.

Hello Colin Roberts,

Yes, please connect power supply and load there.

Best regards.